Copper complex reactive monochloro-s-triazine azo dyestuff

ABSTRACT

A DISAZO DYESTUFF OF THE FORMULA   1-((-)O-),2-((2-((-)O-),3-R1,5-R2-PHENYL)-N=N-),3-(HO3S-),   5-Z,6-Y,8-X-NAPHTHALENE CU(++)   WHEREIN R1 IS H, CI, NO2 OR SO3H AND R2 IS CI, NO2 OR SO3H, AT LEAST OONE OF R1 AND R2 BEING SO3H, AND EITHER X IS H, Z IS SO3 AND Y IS   (((2-X1,3-(R4-N=N-),5-X2-PHENYL)-N(-R3)-),CL-1,3,5-   TRIAZINYL)-NH-   WHEREIN R3 IS H OR CH3, R4 IS 4&#39;&#39;-NITRO-2,2&#39;&#39;-DISULPHOSTILBENE-4-YL OR DISULPHONAPHTHYL, X1 IS H, CH3 OR OCH3 AND X2 IS H, CH3, OCH3, NHCOCH3 OR NHCONH2, OR X IS FORMULA 2, ONE OF Y AND Z IS H AND THE OTHER IS SO3H. THESE DYES ARE BROWN REACTIVE DYES OF VERY GOOD LIGHT FASTNESS AND CAN BE USED TO DYE CELLULOSE TEXTILE MATERIALS.

United States PatentOflice COPPER COMPLEX REACTIVE MONOCHLORO- S-TRIAZINE AZO DYESTUFF Peter Gregory, Manchester, England, assignor to Imperial Chemical Industries Limited, London, England No Drawing. Filed Jan. 14, 1972, Ser. No. 217,951 5 Int. Cl. C09b 6'2/08; D06p 1/38, 3/66 US. Cl.

260-146 T 10 Claims ABSTRACT OF THE DISCLOSURE 10 A disazo dyestuif of the formula (|)-Cu-(| X Rri I v E018 /-Y R: "'z 1 wherein R is H, Cl, N0 or 'SO H and R is Cl, N0 or SO H, at least one of R and R being SO H, and either X is H, is $0 and Y is This invention relates to new disazo dyestuffs useful as reactive dyes for the coloration of cellulose textile materials. a

' According to the invention there are provided disazo dyestuffs of the formula:

wherein R is H, C], N0 or SO H and R is Cl, N0 or SO H, at least one of R and R being SO H, and

either X is H, Z is SO H and Y is a group of the formula: 60

wherein R is H or CH R is a 4-nitro-2,2'-disulphostilbene-4-yl or a disulphonaphthyl radical, and the ben- 3,803,121 I Patented Apr. 9, 1974 zene nucleus A may be substituted by CH OCH NHCOCH or NHCONH or X is a group of Formula 2, one of Y and Z is H and the other is SO H.

The invention also provides a process for manufacture of the new dyestuffs which comprises reacting cyanuric chloride with one mole of a compound of the formula:

wherein R R R and R have the meanings stated above, the benzene nucleus A may be substituted as in Formula 2 and either X is H, Y is NH and Z is SO H, or X is NH;, and one of Y and Z is H and the other is SO H.

The above process may conveniently be carried out by stirring the cyanuric chloride with an aqueous solution of one of the compounds of Formulae 3 and 4 until replacement of one chlorine atom is substantially completethen adding the second compound and stirring until a second chlorine atom has reacted. The first stage is preferably carried out at a temperature between 0 and 1 0 C. and the second at between 30 and C. -It is preferable to add an acid-binding agent to neutralize the hydrogen chloride liberated during the reaction, and more especially to add this at such a rate as will maintain the pH of the reaction medium between 5 and 7.

The compounds of Formula 3 can be obtained by coupling the diazonium salt of 4-amino-4-nitrostilbene- 2,2f-disulphonic acid or of a naphthylamine-disulphonic acid with an amine of the formula:

NH RI where R represents H or CH and the benzene nucleus -A may be substituted as in Formula 2.

As examples of naphthylamine disulphonic acids which may be used, there may be mentioned:

l-naphthylamine-2,7-, 3,-6-, 3,8-, 4,6-, 4,7- and 6,8-

disulphonic acids and 2-naphthylamine-1,5-, 3,6-, 3,7-, 4,8-, 5,7- and 6,8-

disulphonic acids.

As examples of'amines of Formula 5 which may be used, there may be mentioned:

N-methyl-m-toluidine,

The compounds of Formula t can coupling l-amino-B-naphthol-LG- or 4,6-disulphonic acid or 2-arnino-5-naphthol-1,7-disulphonie acid I with the diazonium salt of anaminophenol of the formulai wherein R and R, have the meanings stated above and treating the resultant monoazo compound with a copper salt. As examples of aminophenols of Formula 6 which may be used, there may be mentioned:

As examples of copper salts which may be used there may be mentioned copper sulphate, copper acetate or their amine derivatives from, e.g. ammonia, pyridine or ethanolamine.

be obtained by represents the group of Formula 2 are capable of building up to deeper shades; within this latter class the dyes wherein R is CH give better freedom from staining during washing tests.

Accordingly a preferred class of the new dyestuffs are those represented by the formula:

wherein the symbols R R and R have the meanings stated above and the benzene ring A may be substituted by CH OCH NHCOCH or NHCONH The invention is illustrated but not limited by the following examples in which partsand percentages are by weight:

, EXAMPLE 1 -A solution of 6.47 parts of the trisodium salt of the The new dyestuffs can be isolated from the reaction mixture in which they are formed by the usual means, preferably by salting followed by filtration, but also, for example, by direct drying of the whole condensation mixture, for example, by spray drying. If desireddiluents such as urea, sodium chloride and/or sucrose; can be added before drying.

The new disazo dyestuffs are valuable for coloring cellulose textile materials, for example, textile materials comprising natural or regenerated cotton. For coloring such textile materials, the new dyestuffs are preferably applied, either by a dyeing or printing process, to the cellulose textile materials in conjunction with a treatment with an acid-binding agent, for examplesodium hydroxide, sodium carbonate or sodium bicarbonate, which may be applied to the cellulose textile material before, during or after the application of the dyestuffs. Alternatively when the coloration process involves the use of a heating step a substance can be used, for example, sodium trichloroacetate, which is changed intoian acidbinding agent during the heating step. When so applied to cellulose textile materials especially from long liquor ratio dyebaths, the new disazo dyestuffs react with the cellulose and can be built up to give strong reddish brown to orange brown shades having very good fastness to light 1:1 copper complex of 6-amino-2-(2-hydroxyphenylazo)- 1 naphthol-3,5,5f-trisulphonic acid in parts of water at pH 7 is added during /2 hour to a stirred suspension of 1.95 parts of cyanuric chloride in 20 parts of acetone, 20 parts of water and 20 parts of ice. pH 5-6is maintained by the addition of an 8% aqueous solution of sodium hydroxide as required and the resulting solution is stirred at a temperature of 05 C. for a further 1 hour to complete the reaction. The solution is then screened. The filtrate is stirred at a temperature of 20-25 C. and a solution of 5.62 parts of the disodium salt of 4-(4"- methylaminophenylazo) 4' nitrostilbene 2,2 disulphonic acid in 400 parts of water is added. The temperature is raised to 35-40 C. and pH 5-6 maintained for '1 hour by the additionof an 8% aqueous solution of sodium hydroxide. The reaction solution is stirred for a further 17 hours at 3540 C. the pH readjusted to 6 and the dyestuff isolated by the addition of sodium chloride. The filter cake is redissolved in 300 parts of 'water and precipitated by the addition of 30 parts of sodium chloride. The product is filtered, washed with acetone and dried at 40 C.

The dyestulf so obtained contains 1.0 atom of hydrolyzable chlorine per molecule. When applied to cellulose textile materials, in-conjunction with treatment with an acid-binding agent, the dyestufif gives orange-brown shades having very good fastness to washing, light and bleach. The following table describes other examples of dye stulfs of the invention, being obtained in similar way to Example 1 by condensing cyanuric chloride with the copper complex of the aminoazo compound obtained from the diazo and coupling components of columns II and III with the aminoazo compound obtained from the diazo and coupling components of columns IV and V. The shade obtained from the dyestufi is stated in column VI.

I II HI 7 IV V VI Example Diazo component Coupling component Diazo component Coupling component Shade 2 2-an inophenol-4sulphonic Z-aminoi-naphthol-L'I- 2-naphthylamine-4,8- N -methylaniline Reddish brown. acid. disulphonic acid. disulphonic acid.

3 G-chIoro-Z-Bmmophenol-l- 1,8-aminonaphthol-3,6- Lamino-4mitrostilbene- ..---do Brown.

, sulphonic acid. disulphonic acid. 2,2' disulphonic acid.

4 2-aminophenol-4,6- do do do Do.

disulphonic acid.

5 do 2-amino-5-naphthol-1,7- do do Orange-brown;

disulphonic acid. do do 2-naphthylamine-4,8- m-Toluidine Do.

disulphonic acid. 7 do 1,8-aminonaphthol-3,& do :10 Reddish brown.

disulphonic acid.

8 6-chloro-2-aminophenol-4- do do do D sulphonic acid. 1

9 nitro-2 aminophenol-4- 2-amino-5-naphthol-1fldo do Orange-brown.

sulphonic acid. disulphonic acid.

10 2-aruiinophenol-4-sulphonic .do. do m-Aminophenylurea Do.

11- G-nitroZ-aminophenol-il-amino-8-naphthols3fis 2=naphthylaminc-4,& ...,.,d0........--. Red brown,

su phonic acid. disu p omc a id.

di u phonic acid.

TABLE-Continued I II III IV V VI Example Diazo component Coupling component Diazo component Coupling component Shade 12 2-amino henol-4,6- 1-amino'8-naplithol-3,6- 2-naphthylamine-4,& m-Aminophenylurea Red-brown.

dlsulp onic acid. dlsulphonic acid. disnlphonlc acid. 13 6-nitro2-aminophenol-4- 2-amino-5-naphthol-l,7- 4-amino-4-nitrostilbene- N-methylaniline Orange-brown.

sulphonic acid. disulphonic acid. 2,2-disulphonie acid. 14 do 1-amino-8-naphthol-4,6- do N-methyl-m-toluldine Bed-brown.

disulphonic acid. 15 6-chloro-2an1lnophenol-4- 2-amino-5-naphthol-1,7- -.do N-methylanlline Orange-brown.

sulphonic acid. disulphonic acid. 16 2-aminophenol-4 6- ....-do 2-naphthylamlne-L5- 2,5-dimetl1oxyaniline Do.

- disulphonic acid. disnlphonic acid. 17 do do 1-naphthyl8mine-4,8- m-Amlnoacetanillde Do.

disulphonic acid. is do do 1-naphthylamina-3,6- N-mothylanlline Do.

disulphonic acid. 19.. Z-aminophanolA-sulphonic 1-amino-8naphthol-3,6- 2-naphthylamine-4,8- m-Toluidine Bed-brown.

a disulphonlc acid. disulphonic acid. 20 2-aminophenol-4-sulphonic 1-amino-8-naphthol-4,6- 2-naphthylamine-6,8- m-Aminoacetanilide D0.

acid. disulphonlc acid. disulphonic acid. 21 4-chloro-2-aminophenol-6- 1-amino8naphthol-3,6- 2-naphthylamine-5,7- 2,5-dimethylaniline-.. Do.

sulphonic acid. dlsulphonic acid. disulphonic acid. 22 do d 1-naphthylamina-4,6 N-methyl-m-toluldine Do.

: disulphonic acid. 2-aminophenol4 6- 2-amino-5-naphthoi-1,7- 2-naphthylamino-3,7-' 2-methoxy-6-methylanlline Orange-brown.

disnlphonic ac d. disulphonic acid. disulphonic acid. fi-nitroZ-aminophenol-d- 1-amino-8-naphthol-4,6- l-naphthylamine-4J- N-methyl-m-toluidine Red-brown.

sulphonic acid. disulphonlc acid. disulphonlc acid. 4-nitro-2-am1nophenol-6- .....do 2-naphthylamine-3,6- m-Aminophenylurea Do.

sulphonlo acid. disulphonlc acid.

We claim:

1. A disazo dyestufi of the formula O-Cu-O x Hos Y wherein R is H, Cl, N0 or SO H and R is C1, N0 or O-Cu-O wherein X X R R and R have the meanings stated in claim 1.

3. A disazo dycstuif as claimed in claim 2 wherein R, is SO H and R is H or SO H.

4. A disazo dyestuff as claimed in claim 3 wherein R is 4' nitro 2,2'-disulphostilbene-4-yl, R is CH; and X and X, are each H.

5. A disazo dycstulf as claimed in claim 1 wherein R is 4,8-disulphonaphth 2 yl, R is H, X; is H and X, is selected from CH NHCOCH and NHCONHQ.

6. A dyestufi as claimed in claim 4 having the formula:

El N=N N NO: HOxS NH JF-N CH=CH f 6 8 :H S H S 311 References Cited UNITED STATES PATENTS 3,424,738 1/1969 Andrew 260-146 T 3,349,074 10/ 1967 Andrew 260-146 T- FLOYD D. HIGEL, Primary Examiner US. Cl. X.R.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,203,121 Dated April 9, 1974 In nt Peter Gregory It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

In the Heading:

Please add the following:

Claims priority, application Great Britain,

February 25, 1971, 54'20- Signed and sealed this 20th day of May 1975.

(SEAL) Attest:

C. MARSHALL DANN RUTH C. MASON Commissioner of Patents Attesting Officer and Trademarks RM Po-wso (10459) USCOMM-OC 60376-P6J U 5. OOVUINHLNY HilNIlNu OIHCI I69 0- Jti'LMfi UNITED S'IATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent NO. n-3 71 Dated 9 91 Inventor s Bate? (Zrggnny It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 1, line 24 should read --Z is SO H--.

Column 5, formula (2) should read 111 if N=N"R4 5 -NH- e-N Column 6; line 27 should read --and R is H or SO H.

Column 6, line 29, "R is CH should be deleted. Column 6, line 55 R is H" should be deleted;

Signed and sealed this l st day of October 1974.

(SEAL) Attest: i

McCOY M. GIBSON JR, C. MARSHALL DANN Attesting Officer Commissionerof Patents DRM PC4050 10-69 USCOMM-DC 60376-5 69 h u s, novunmnu umnno OIIICI an o-us-au 

